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Image Number K8382-1 Cytologist William Wergin (left) and zoologist David Chitwood focus on Caenorhabditis elegans, a free-living nematode species that is serving as a model for studying the biochemistry of soybean cyst and root-knot nematodes. Photo by Keith Weller.  640 pixels wide: (k8382-1.jpg)   Please visit our Image Gallery


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